Males Females All
t P t P t P
Right D1 - left D1 -0.317 0.751a -0.088 0.93a -0.267 0.79a
Right D2 - left D2 -1.146 0.253a 0.628 0.53a -0.943 0.346a
Right D3 - left D3 -0.326 0.745a 0.004 0.996a -0.238 0.812a
Right D4 - left D4 0.946 0.345a -0.252 0.801a 0.537 0.592a

Comparisons the distances (mm) between on right and left sides
aNot significant, Independent samples t-test (significance level P < 0.05).
D1 = upper distance; D2 = lower distance; D3 = buccal distance; D4 = lingual distance; n = number of cases; SD = standard deviation.